I really liked this little glimpse into the young lives of the Dumbledore brothers. i agree with you that there are too many stories about Aberforth hating Albus out there and you did a wonderful job showing more complex emotions from him. My only negative is the use of the Muffliato spell. That spell wasn't invented until much later--when Albus was teaching at Hogwarts--by a brilliant, young Slytherin who considered himself a Prince of sorts. But overall, excellent story.